Yves Lafon wrote:
> > field that is single-valued but erroneously repeated. If an
> > intermediary combines two single-valued header fields
> together then it
> > could change the meaning of the request/response if the
> combined value
> > is also a legal value for that field (see
> http://tools.ietf.org/wg/httpbis/trac/ticket/93).
>
> If there an example of a repeated single-valued header that,
> once folded in one list-valued header becomes legal?
> Content-Length: 12
> Content-Length: 42
> is as illegal as
> Content-Length: 12,42
Off the top of my head: Location, Content-Location, and Referer.
Location: http://foo.com/a
Location: http://foo.com/b
Location: http://foo.com/a,http://foo.com/b
Regards,
Brian